A two-piece rear spring mount and slotted castle nut set designed for 1963-1982 Chevrolet Corvette rear suspension. This assembly secures the lower ball joint and rear spring mount, restoring proper alignment and improving safety. Manufactured from high-strength steel with a corrosion-resistant finish, the kit provides reliable, long-lasting performance and straightforward installation for restorations or maintenance projects.
Features:
- Fits 1963-1982 Chevrolet Corvette rear suspension (rear spring mount / lower ball joint).
- Two-piece rear spring mount design for accurate OEM-style fitment and easier assembly.
- Slotted castle nut set allows cotter-pin retention to prevent loosening under load.
- High-strength steel construction with a corrosion-resistant finish for durability.
- Restoration-grade replacement that restores proper alignment and suspension safety.
- Simple swap-in replacement for worn or damaged mounts and fasteners.
Installation / Application:
- Difficulty: 3/5
- Estimated time: 1-2 hours
Instructions:
- Park on a level surface, chock front wheels, and loosen rear lug nuts slightly.
- Raise the rear of the vehicle with a floor jack and secure on jack stands under the frame; remove the rear wheels.
- Support the rear axle or control arm with a secondary jack or stand to control movement when fasteners are removed.
- Remove any components blocking access (shock absorber lower bolt or sway bar link) as needed to expose the lower ball joint and spring mount area.
- Remove the old castle nut and any retaining hardware from the lower ball joint stud. Use a punch or appropriate tool to drive out any seized hardware if necessary.
- Unbolt and remove the old two-piece spring mount (if replacing the mount). Inspect the spring perch, lower control arm, and ball joint for wear or damage; replace any worn components.
- Position the new two-piece rear spring mount and align with the control arm and spring perch. Install the lower ball joint stud through the mount.
- Install the slotted castle nut onto the lower ball joint stud and tighten by hand. Torque the nut to the vehicle manufacturer's specifications using a torque wrench.
- Align the castle nut slot with the ball joint stud hole and insert a new cotter pin; bend the cotter pin ends to secure. Do not rely on the cotter pin to tighten the nut—torque to spec first.
- Reinstall any removed components (shocks, sway bar links), lower the axle slightly to seat components, and recheck torque on all fasteners.
- Reinstall the wheels, lower the vehicle to the ground, torque the wheel lug nuts to specification, and perform a short road test to verify proper operation and that no unusual noises or play are present.
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Vehicle Fitment:
The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
| Make |
Model |
Years |
| Chevrolet |
Corvette |
1963 - 1982 |